中国地质调查2016，Vol.3Issue(6)：32-36,5.
西藏日松乡一带发现早白垩世标准化石及其意义
Significance of Early Cretaceous index fossils from Risong villages of Tibet
摘要
Abstract
The study area is located in Risong villages of Tibet.In order to provide the basis for Mesozoic strati-graphic age in this area,lithology combination,sedimentary environment,paleontological characteristics were studied.A lot of Early Cretaceous index fossils,such as Orbitolina (Palorbitolina)complanata and Stylina parvis-tella Volz,were found in the Jurassic strata in the 1∶250 000 geological survey in Ritu County.These fossils pro-vided strong evidence of the division of stratigraphic age in this area.Combining with analysis of sedimentary envi-ronment,the conclusion can be made that sedimentary facies in early Cretaceous of this area developed in residual sea basins.关键词
扁平古圆笠虫/小星准柱珊瑚/早白垩世/阿里/西藏Key words
Orbitolina(Palorbitolina)complanata/Stylina parvistella Volz/Early Cretaceous/Ali/Tibet分类
生物科学引用本文复制引用
陈美涛,范国强,贾笛,潘映星,康枭..西藏日松乡一带发现早白垩世标准化石及其意义[J].中国地质调查,2016,3(6):32-36,5.基金项目
中国地质调查局“西藏1∶5万日土县日松地区（I44E018007、I44E018008、I44E019007、I44E019008）4幅区域地质矿产调查（编号212011221086）”项目资助。 （）
